/**
Copyright (c) 2013, Andy Fox (andy.fox at qq.com)
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this
  list of conditions and the following disclaimer in the documentation and/or
  other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "bsd_types.h"

#ifndef __BSD_HASH_H__
#define __BSD_HASH_H__

#define BSD_HASH_KEY_STRING     (-1)

typedef struct bsd_hash_t bsd_hash_t;
typedef struct bsd_hash_index_t bsd_hash_index_t;
typedef u32 (*bsd_hash_fn)(const char *key, u32 *klen);
typedef int (*bsd_hash_callback_fn)(void *rec, const void *key,
                                    u32 klen, const void *value);

bsd_hash_t *bsd_hash_make(bsd_hash_fn hash_func);
void bsd_hash_free(bsd_hash_t *ht);
bsd_hash_index_t *bsd_hash_first(bsd_hash_t *ht);
bsd_hash_index_t *bsd_hash_next(bsd_hash_index_t *hi);
bsd_hash_t * bsd_hash_copy(const bsd_hash_t *orig);
void *bsd_hash_get(bsd_hash_t *ht, const void *key, u32 klen);
void bsd_hash_set(bsd_hash_t *ht, const void *key, u32 klen, const void *val);
u32 bsd_hash_count(bsd_hash_t *ht);
void bsd_hash_clear(bsd_hash_t *ht);
int bsd_hash_do(bsd_hash_callback_fn comp, void *rec, const bsd_hash_t *ht);


#endif /* __BSD_HASH_H__ */

